High-pressure feedthrough for feeding through a coaxial cable into a high-pressure zone
a high-pressure zone and feedthrough technology, which is applied in the direction of cable termination, cable installation apparatus, coaxial cables/analogue cables, etc., can solve the problems of degrading signal quality and measurement, feeding through coaxial,
Active Publication Date: 2019-07-23
LIEBHERR ELEKTRONIK
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- Application Information
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Benefits of technology
The present disclosure provides a high-pressure feedthrough for coaxial cables used in hydraulic or pneumatic systems. The technical effects of the invention include a sealing compound or element that takes over the function of the dielectric of the coaxial cable, reducing interference and signal reflections. The elongate bore of the support structure allows for a continuous connection between the high-pressure and low-pressure sides, ensuring an ideal transmission path. The design of the elongate bore also allows for the removal of certain parts of the coaxial cable without interfering with the signal quality. The high-pressure feedthrough is compact and cost-effective, providing a reliable solution for high-pressure applications.
Problems solved by technology
Problems can arise on the feeding through of coaxial cables that are used for the signal transmission of high-frequency signals on the order of 10 GHz.
Unwanted reflections due to impedance fluctuations of the coaxial cable can degrade signal quality and the measurement.
Method used
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Embodiment Construction
[0033]FIG. 1 shows a side view of the high-pressure feedthrough 1. The housing of the high-pressure feedthrough 1 forms an electrically conductive support structure 4. The housing shape is cylindrical in at least one portion, i.e. the housing diameter varies in an axial direction.
[0034]In the sectional representation of FIG. 2, the elongate bore 15 can be recognized that completely passes through the support structure 4 in the axial direction. The elongate bore 15 is accessible from the outside via upper and lower housing openings 16, 17. The pressure feedthrough 1 serves the feeding through of a coaxial cable from a low-pressure zone into a high-pressure zone. In the assembly position, the opening 16 is in the low-pressure zone and the opening 17 is in the high-pressure zone. Consequently, a passage is created between both pressure zones by the elongate bore 15. In the representation of the figures, the introduced coaxial cable is marked by reference numeral 30.
[0035]The geometric ...
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Abstract
The present disclosure relates to a high-pressure feedthrough for feeding through a coaxial cable from a low-pressure zone into a high-pressure zone, wherein the high-pressure feedthrough has a support structure having at least one elongate bore that extends from a low-pressure side of the support structure up to a high-pressure side of the support structure; wherein the elongate bore is suitable for receiving at least the inner conductor of a coaxial cable that can be continuously fed through the elongate bore from the low-pressure side to the high-pressure side; and wherein the high-pressure feedthrough has one or more components that serve in the axial direction of the elongate bore as an outer conductor and / or dielectric of the inner conductor of the coaxial cable fed through the elongate bore.
Description
CROSS REFERENCE TO RELATED APPLICATION[0001]The present application claims priority to German Patent Application No. 102017000361.0, entitled “High-Pressure Feed Through for Feeding Through a Coaxial Cable into a High-Pressure Zone,” filed Jan. 17, 2017. The entire contents of the above-referenced application is hereby incorporated by reference in its entirety for all purposes.TECHNICAL FIELD[0002]The present disclosure relates to a high-pressure feedthrough for feeding through a coaxial cable from a low-pressure zone into a high-pressure zone.BACKGROUND AND SUMMARY[0003]A high-pressure feedthrough is often used within a hydraulic or pneumatic system in which a signal transmission should take place between regions having high pressure differences. A sufficient sealing in the region of the cable feedthrough is important with possible pressure differences of several hundred bar.[0004]Problems can arise on the feeding through of coaxial cables that are used for the signal transmission ...
Claims
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IPC IPC(8): H01B11/12H01B11/18H02G1/08H02G15/02
CPCH02G1/086H02G15/025H01B11/18H01B11/12
Inventor LEUTENEGGER, PAOLOZINNER, TOBIASSCHEIDT, MICHAELSTUCKE, MICHAEL
Owner LIEBHERR ELEKTRONIK